Electrocatalytic hydrogen evolution with cobalt–poly (4-vinylpyridine) metallopolymers

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buir.contributor.authorKap, Zeynep
buir.contributor.authorÜlker, Emine
buir.contributor.authorNune, Satya Vijaya Kuma
buir.contributor.authorKaradaş, Ferdi
dc.citation.epage209en_US
dc.citation.issueNumber2en_US
dc.citation.spage201en_US
dc.citation.volumeNumber48en_US
dc.contributor.authorKap, Zeynepen_US
dc.contributor.authorÜlker, Emineen_US
dc.contributor.authorNune, Satya Vijaya Kumaen_US
dc.contributor.authorKaradaş, Ferdien_US
dc.date.accessioned2019-02-21T16:10:13Zen_US
dc.date.available2019-02-21T16:10:13Zen_US
dc.date.issued2018en_US
dc.departmentDepartment of Chemistryen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractAbstract: A facile synthetic pathway using poly(4-vinylpyridine) as a polypyridyl platform is reported for the formation of a metallopolymer. Electrochemical studies indicate that the metallopolymer acts as an efficient H2 evolution catalyst similar to cobalt polypyridyl complexes. It is also observed that the metallopolymer is transformed to cobalt particles when a cathodic potential is applied in the presence of an acid. Electrochemical measurements indicate that an FTO electrode coated with these cobalt particles also acts as an efficient hydrogen evolution catalyst. Approximately 80 µmoles of H2 gas can be collected during 2 h of electrolysis at − 1.5 V (vs. Fc+/0) in the presence of 60 mM of acetic acid. A comprehensive study of the electrochemical and electrocatalytic behavior of cobalt-poly(4-vinylpyridine) is discussed in detail. Graphical Abstract: Poly(4-vinylpyridine) as a precursor for electrodeposited cobalt particles: a cobalt coat derived by a metallopolymer acts as an efficient H2 evolution catalyst. It can transform to a cobalt coat when a potential above − 1.1 V is applied in acid medium. Exchange current density of 10−2.67 mA cm−2 was observed from the Co-coat at − 1.5 V (vs. Fc+/0).en_US
dc.description.sponsorshipAcknowledgements The authors thank the Science and Technology Council of Turkey, TUBITAK (Project No: 215Z249) for financial support. Emine Ülker thanks TUBITAK for support (Project No: 1929B011500059).en_US
dc.identifier.doi10.1007/s10800-018-1152-zen_US
dc.identifier.issn0021-891X (print)en_US
dc.identifier.issn1572-8838 (online)en_US
dc.identifier.urihttp://hdl.handle.net/11693/50496en_US
dc.language.isoEnglishen_US
dc.publisherSpringer Netherlandsen_US
dc.relation.isversionofhttps://doi.org/10.1007/s10800-018-1152-zen_US
dc.relation.projectBeijing Council of Science and Technology - 1929B011500059 - 215Z249en_US
dc.source.titleJournal of Applied Electrochemistryen_US
dc.subjectCobalten_US
dc.subjectElectrodepositionen_US
dc.subjectHydrogen evolutionen_US
dc.subjectPoly(4-vinylpyridine)en_US
dc.subjectWater reductionen_US
dc.titleElectrocatalytic hydrogen evolution with cobalt–poly (4-vinylpyridine) metallopolymersen_US
dc.typeArticleen_US

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